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(No Model.) 7 2 Sheets-Sheet 2.

F. W. ROBINSON.

STRAW STAGKBR- N0. 537,07 O." Y Patented Apr. 99,1895.

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v 7 mm UNITED" STATES" PATENT OFFICE.

FRANCIS W. ROBINSON, OF RICHMOND, INDIANA, ASSIGNOR TO THE ROBINSON &?COMPANY, OF SAME PLACE.

STRAW-STACK'ER.

SPECIFICATION forming part of Letters Patent No. 537,070, dated April9,1895. Application filed February 2, 1895- Serial No. 537,110. (Nomodel.)

To all whom it may concern:

Be it known that I, FRANCIS W. ROBINSON, a citizen of the United States,residing at Richmond, in the county of Wayne and State of Indiana, haveinvented certain new and useful Improvements in Straw-Stackers, of whichthe following is a specification.

My inventionrelates to straw stackers, or straw stacking attachments,for use in connection with thrashing machines, and more particularly. tothat class of such devices known as pneumatic or wind stackers.

.its base to the turn table at e.

I will first describe my improvements by reference to the accompanyingdrawings, forming a part of this specification, and will then point themout specifically in the claims.

In the drawings: Figure 1 is a sectional side elevation of so much of astraw stacker as needed for the purposes of explanation. Fig. 2 is aside elevation onenlarged scale of the hinged or swinging trunksupporting bracket. Fig. 3 is a rear elevation of the same with thetrunk in section. Fig. 4 is a diagrammatic plan of the hoistingappliances.

My improvements are applicable to the chute or trunk of straw stackersgenerally, but the particular embodiment of the same illustrated inthedrawings is intended for use on a straw-stacking attachment of the kind.set forth in my Letters Patent No. 532,428, of January 8, 1895.

A is the turn table mounted in any suitable way to revolve upon the bodyof the stacker or stacking attachment, and having peripheral Worm teethto engage an operating worm by which it may be revolved. Means-for thispurpose are well known; and as they form no part of my presentinvention, I do not deem it necessary to illustrate them.

B is the stump, as it is termed, of the trunk or chute, attached to andmoving with the turn table. The trunk in this instance is telescopic,being composed of two sections 0, D, the outer one D being mounted andadapted to move lengthwise on the inner section 0 to Vary at will theworking length of the trunk as a whole. Theinner section at itsinner'end is curved to fit and move upon the correspondingly curved neckof the stump vided with an operating handle (1 'B, and it is secured toa bracketEhinged at The bracket E, as shown more clearly in Fig. 3, hasears e, at the bottom by which it is hinged to the turn table, and abovethe ears it is made annular to fitaround the trunk '55 which passesthrough and is secured to it at this point. This inner end of the trunkand the neck of the stump on which that end fits, are curved in the arcof a circle struck from the pivot or hinge point e as a center, so thatthe trunk in being swung up or down can move freely on the curved neckof the stump. Above its annular portion the bracket is prolonged in theshape of an upwardly extending stem E, which I make use of as the rigidarm of the derrick by which the trunk is swung up and down, and I alsocan, and do, mount in this arm a number of the pulleys over which passtheropes or cords for effecting various adjustments of the trunk ashereinafter described. 7

In order to permit the derrick arm or stem E to be turned down out ofthe way, when the machine is passing under low places, as through a barndoor, I provide it at a suitable point with a hinge as at f. When thestem is upright it is held in position by suitable means as for exampleby the stay rod g joint ed at its front end to an upright post 9 on thetrunk section 0, and at its other end detachably engaging a hook it onthe upper end of the stem. By disengagingthe rod from the hook it, thehinged part of the derrick arm or stem can be turned or folded downbackward whenever desired. 8

The hoisting appliances connected with the derrick arm or stem E may beof any suitable kind. Thearrangement which I prefer for the purpose isshown in thedrawings.

In thestem E are journaled two pulleysa. side by side as seen in Fig. 3.In a stand F, fixed to the turn table, are journaled two correspondingpulleys I) (only one of which is seen in Fig. 1). In the stand is alsomounted a shaft a carrying a worm wheel 0 and hav- 5 ing also fixed onit a drum 0 (shown by dotted lines in Fig. 1). The worm wheel engagesand is driven by a worm d fixed on a shaft (1" having its hearings inthe stand F and pro- One end I00 of the hoisting rope Z is fastened to ahook or eye h at the outer end of the derrick arm or stein E. The ropethen extends down around and under one of the pulleys I), up over andaround one of the pulleys a, thence down around and under the secondpulley b, thence up over and around the second pulley a, and thence downtothe drum 0 to which it is made fast. In this way a powerful purchaseis obtained which enables the operator to lift the trunk with case. Iprefer to form the parts h h, one upon each end of a bar h pivoted cenltrally in the top of stem E as indicated at L.

I proceed now toa description of the appliances which I now prefer foroperating the outer trunk section when, as in the present instance, thetrunk is telescopic.

Journaled in the stem E below the hingepointf is shaft G provided withan operating handle G, and with a ratchet. wheel 1' (Figs. 2 and 3) tobe engaged by a retaining pawl or dog *6 pivoted to the stem E, the pawland ratchet being for the purpose of locking the shaft G when it hasbeen operated to extend or move outwardly the outer section D. Upon theshaft is mounted a pulley 7'. Fast to the inner end of the outer sectionD is an uprightpost k; and attached to the post as well as to a secondpost 7: at the front of section D is a rod or pipe 18, which is parallelwith the trunk and extends back along a portion of the rear section (J,passing loosely through an eye or hole 9 in the post 9'' on section 0.In post 9 is journaled a pulley l. To post is made fast one end of awire or other rope 2 which thence extends back to and around the pulleyor drumj on shaft G, making one or more turns around said drum toprevent slipping. It thence extends forward to and around pulleyl onpost 9' and thence back to the rear end of the rod or pipe k to which itis attached. By rotating the shaft G the outer section D will be movedlengthwise of the inner section 0 in one direction or the otheraccording to the direction of rotation. The rod 70 serves as a guide andprevents rotation of the outer section on the inner section.

The hood or deflector H, at the outer end of the trunk or chute althougha hinged deflector is in a sense telescopic, in that when raised ittelescopes or moves back upon and around the discharge end of saidtrunk. A support H to which its rear end is attached is hinged at itslower end at m to a bracket or hanger m on the under side of the trunk;and the deflector is shaped as a tubular curved elbow, its curve linebeing on a circle struck from the pivotal point 171. as a center. InFig. 1 it is shown in full lines in its raised position and in dottedlines in its lowered position. In raised position it surrounds andhouses the front end of the trunk, and is moved bodily back and out ofthe path of that end. It is to be noted also that the discharge end ofthe trunk also is slightly curved downward as shown at n-this curvaturein practice beinglfrom one-eighth to onefourth of afull elbow turn. Theadvantage of this is that when the trunk is elevated and the deflectoris fully thrown back, the straw is not thrown or blown so loosely upinto the air, as it would be if the discharge end were straight, but isdeflected toward the straw stack and is not scattered to such an extentas it otherwise might be. This curvature also facilitates thetelescoping of the deflector upon the discharge end and permits a betterjoint, to be made between that end and the deflector when the latter islowered.

I prefer to operate the deflector positively in both directions, andalso in the case of a telescopic trunk (such as illustrated in thedrawings) to provide that these means may automatically adj ustthemselves to variations in the length of the trunk'occasion'ed by thelengthwise movement in either direction of the outer trunk section uponthe inner section. To this end I loosely connect with the deflector anoperating rod 0 which is loosely attached to the upper end of thedeflector support H and thence extends back along and parallel with thetrunk to a point which when the trunk is contractedwvill be in theneighborhood of the derrick arm E as shown in Fig. 1. This rodpreferably passes lengthwise throngh the tubular guide rod or pipe 70 Inbrackets on the rear of the stem E is 'jonrnaled a pulley or drum 1) tobe revolved by hand by suitable means such as a crank handle or thelike. In the stern E is journaled a spool q having its axis coincidentwith the hinge point f between the two parts of the stem; and in thepost g is a second pulley like pulley l arranged alongside of thatpulley, just as the one pulley a is placed alongside of the other pulleya in the stem E. An operating rope or cord 3 passes to and makes one ormore turns around drum 1) to prevent slipping; thence passes up overspool q to avoid interference with the cable for telescoping the trunk;thence to and around the pulley provided for it at the point I, andthence back to the rear end of rod 0 to which it is attachedb0th ends ofthe rope 3 being i then attached to the rod 0.

By turning the drurnp by hand, the deflector can be adjusted as desired.At the same time when the outer trunk-section is moved lengthwise on theinner section for the purpose of extending or contracting the length ofthe trunk the drum 19 will automatically revolve and render the rope 3in the proper direction, the pull being upon one or the other of theends of the rope 3 according to the direction of movement of the outertrunk section.

The operating rod 0 is typical of any suitable rearward extension fromthe deflector for proper attachment thereto of the operating cable orrope 3. Under this arrangement the rope 3 is practically an endlesscable, the system of pulleys or drums around which it passes are mountedon the inner trunk section or some part moving in unison therewith, andthe arrangement is such that while the deflector can at all times bemoved positively in either direction, the operating means willautomatically render and adjust themselves to variations in the workinglength of the telescopic trunk. This feature I believe to be new with mebeyond its special embodiment illustrated in the drawings.

Having now described my improvements in straw stackers, and the best waynow known to me of carrying the same into effect, I state in conclusionthat I do not limit myself narrowly to the structural details hereindescribed and illustrated, since manifestly the same can be varied in anumber of respects without departure from the spirit of my in-' vention;but 7 What I claim, and desire to secure by Letters Patent, is asfollows;

1. In combination with the trunk or chute and its hinged support orbracket, a hinged derrick arm or stem attached to and carried by saidsupport or bracket, means for holding said hinged stem in uprightposition, and hoisting appliances connected to said stem, substantiallyas hereinbefore set forth.

2. The combination of the trunk or chute;

1' the hinged trunk support or bracket; the derrick arm or stem carriedby said bracket; the pivoted double hook it h 71 the stay rod, connectedto one of the hooks; and hoisting appliances connected to the otherhook, substantially as and for the purpose hereinbefore set forth.

3. The combination with the two part telescopic trunk and the hingedsupport or bracket for the inner trunk section, of a derrick arm or stemcarried by said bracket, and the appliances for moving the outer trunksection upon the inner section, the operating drum or pulley j of whichappliances is mounted in and carried by said derrick arm or stem,substantially as and for the purposes hereinbefore set forth.

4. The combination with the telescopic trunk, a hinged bracket attachedto and supporting the inner trunk section, and a derrick arm or stemcarried by said bracket, of hoisting appliances consisting of a hoistingrope and series of pulleys, the front ones of which latter are mountedin said stem, and appliances for moving the outer telescopic trunksection upon the inner section, comprising an operating rope and aseries of pul leys or drums the rear operating one of which is mountedin said stem, substantially as and for the purposes hereinbefore setforth.

5. In combination with the telescopic trunk, its hinged supportingbracket, a deflector hinged to the outer telescopictrunk section, andappliances for hoisting the trunk, and adjusting the outer telescopicsection and operating the hinged deflector, of a derrick arm or stemformed in one with or attached to the hinged trunk supporting bracket,connected to the hoisting appliances, and carrying the operating pulleysor drumsj 10, whereby the telescopic section and the deflector areseverally adjusted, substantially as and for the purposes hereinbeforeset forth.

6. The hinged supporting bracket, and the two partjointed derrick arm orstem attachedto said bracket, and having mounted in that portion of itbelow the joint or hinge, the operating drums or pulleys jp, for theouter telescopic trunk section and the hinged deflector respectively, incombination with the telescopic trunk, hoisting appliances connected tothe outer end of the jointed stem, and devices for adjusting the outertelescopic section and hinged deflector, connected to and operating inconjunction with the pulleys or drums j p respectively, substantially asand for the purposes hereinbefore set forth.

7 In combination with the telescopic trunk, the deflector hinged to theouter trunksection, an operating rod attached to said deflector andextending back along the trunk, and operating means connected to saidrod and mounted on and carried by the inner trunk section, substantiallyas and for the purposes hereinbefore set forth.

8. In combination with the telescopic trunk, and the guide pipe attachedto the outer trunk section, a deflector hinged to said outer sec tion,an operating rod attached to said deflector and extending back throughand beyond the guide pipe, and operating means connected to the saidrod, and mounted on the inner trunk section, substantially as and forthe purposes hereinbefore set forth.

9. The trunk or chute having a downwardly curved discharge elbown incombination with the curved elbow shaped deflector H hinged to andadapted to telescope upon the trunk, as herein shown and described.

10. In combination with the trunk or chute and its hinged support orbracket-, the two part-jointed derrick arm or stem having one of itsmembers rigidly attached to the bracket, hoisting appliances connectedtothe other member, and means for holding the last named member inunfolded and extended condition, as hereinbefore set forth.

11. The trunk or chute and its hinged supporting bracket, in combinationwith a two part-jointed derrick arm or stem attached to and carried bysaid bracket, hoisting appliances connected to the outer member of saidderrick arm or stem; a hinged hood or deflector at the discharge end ofthe trunk; and appliances for adjusting said deflector, the op? eratingdrum or pulley p, of which is carried by the fixed member of saidderrick'arm or stem, as hereinbefore set forth.

In testimony whereof I have hereunto set my hand this 29th day ofJanuary, 1895.

FRANCIS W. ROBINSON.

Witnesses:

OLIVER P. NUSBAUM, HOMER HOCKETT.

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